Jewelry finding



NOV. 2, 1937. MQREHOUSE 2,098,104

JEWELRY FINDING Filed Oct. 17, 1935 ,Z r, d

HVVENTUR. ji'zyea /%/ezozzse ATTORNEYS Patented Nov. 2, 1937 PATENT OFFICE JEWELRY FINDING Eugene Morehouse, Providence, R. I., assignor to B. A. Ballou. & 00., Inc., a corporation of Rhode Island Application October 1'7, 1935, Serial No. 45,466

4 Claims.

dered to the ornament with which it is asso-.

ciated.

Another object of the invention is the provision of a finding of the character above mentioned which will have a base providing sufficient area for the attachment to the surface of an ornament or the like by soft solder to securely hold the same in desired mounted position. Another object of the invention is the provision of a finding of this character in which the base will have but one fold, the device being provided of metal pressed to shape rather than sheetstock all of a single thickness bent in several folds.

Another object of the invention is the method of shaping the stock so that an enlarged base and soldering surface may be provided without fracture of the metal.

With these and other objects in view, the invention consists of certain novel features of construction, as will be more fully described, and

particularly pointed out in the appended claims.

In the accompanying drawing Fig. 1 is a side elevation of a bar pin or like article of jewelry with the pin stem, joint and catch therefor mounted in position;

Fig. 2 is a plan view looking at the inner surface of a sheet of stock after being pressed into desired shape for forming the device;

Fig. 3 is a view similar to Figure 2 looking at the opposite side thereof;

Fig. 4 is a sectional view after the first step in the pressing of the stock into desired shape has been performed;

Fig. 5 is a sectional view after the second step in forming the device to the desired shape has been performed;

Fig. 6' is an end elevation showing the manner of folding the ears of the device toward finished 5 position;

Fig. 7 is a sectional view through the device after folded to finished position with the rotor member omitted;

Fig. 8 is a side elevation with a rotor mounted 0 in position, the device being in this case used as a safety catch;

Fig. 9 is a bottom plan view of the device after folded to finished position.

Safety catches and pin stem joints have in the 55 past been in the majority of instances hard soldered to the ornaments to which they are attached. Hard soldering as is known requires a much higher degree of heat than soft soldering, and in cases where the ornament was hard and it was desired that the ornamentation be kept hard some device such for instance as an intermediate sheet of stock was used to hard solder the catch or the joint for the pin stem to the patch of intermediate sheet stock and then this patch in turn soft soldered to the hardened oma- 1 ment in order that the ornament would not be injured; and further, recently a so-called Britannia metal has been developed for the setting of stones, which metal is an alloy having a low melting. point, although being particularly ad- 15 vantageous in the setting of stones; and it has been necessary to resort to some sort of soft soldering means to attach a pin stem joint or catch to such metal; and in order to avoid the necessity of twice soldering such 'as where a patch is used, 20 I have provided in the findings themselves a millciently large base so that the same may be soft soldered in position. The thickening of the stock at the point of bending up the ears to form the base has not been satisfactory as a thickened stock will crack across the fold if made of a thickness suflicient that the base be increased a desired amount, and accordingly, I have shaped the blank so as to provide flanges which from a practical standpoint must be made in two steps in order that the tool will not break and yet there be a separation of a suflicient depth; and the following is a more detailed description-of the present embodiment of this invention, illustrating the preferred means by which these advanta- 35 geous results may be accomplished:

With reference to the drawing, l0 designates an ornamental plate to the back surface of which I have provided a finding ll consisting of a pin stem joint in which a pin stem I2 is mounted. At 40 the other end of the device I have mounted a finding l3 in the form of a safety catch which receives and securely holds the pointed end of the pin stem in clasped position. These findings II and i3 are similarly constructed and each has a base with spaced upstanding ears, in the joint of one of which pin stem I2 is pivotally mounted, while in the catch a rotor is pivotally mounted for movement to lock or unlock the pin stem in position. As each of these findings are similarly formed I will describe but the safety catch in connection with this invention. A blank is struck between matched dies in two operations to provide the shape indicated particularly in Figure 4, there being recesses [6 provided on the surface to become the inside to provide bearings for the reception of the rotor memher of the catch. Also an increase in the amount of stock as at I! is provided at the point of bending. On the opposite surface the ears l8 and I! are similar to each other. Also on this opposite surface portions which are to become flanges 20, 20 are provided at the middle adjacent the point of bending. In the first operation the stock between the flanges 20, 20 is but slightly indented. In the second operation, the stock 22 between the flanges 20 is forced inwardly or slit so as to provide a deep depression 2| as shown in Figure 5. Thus, the narrow tool for this purpose is not easily broken.

These flanges 20 extend a greater distance from the fold or in a direction at right angles to the length than at any other point. These flanges are enlarged in a lateral dimension as at 23 so that when the stock is folded as at 25, see Figure 6, over the anvil tool, these flanges 20 will spread out to provide a base which, as shown in Figure 9 in a bottom plan view or in Figure 7,

has an area greater in any diametrical dimension than that of any part above it; and as these ears are given a sufllcient breadth by reason of the lateral projections 23, a desired large area is provided on the base at 26 for attachment to an ornament by means of soft solder.

Just prior to the completion of the folding of the ears l8 and I9 toward each other the rotor member 21 is positioned with its trunnions 28 extending into the bearings or recesses i6 while the finger pieces 29 extend outwardly through the slot 30 to manipulate the same to and from locking position.

By this method an article which is of strong and durable construction and which has a base larger than any heretofore formed is provided for attachment by means of soft solder into its desired position.

The foregoing description is directed solely towards the construction illustrated, but I desire it to be understood that I reserve the privilege of resorting to all the mechanical changes to which the device is susceptible, the invention being defined and limited only by the terms of the appended claims.

I claim:

1. A jewelry finding for a pin stem joint or catch comprising a piece of stock folded once to provide parallel ears with integral flanges extending from said fold at substantially right angles to said ears and lying alongside said earsto provide a, base the under surface of which presents a solder surface for attachment of the device.

2. A Jewelry finding for a pin stem Joint or catch comprising a piece of stock folded once to provide parallel ears with integral flanges extending laterally from said ears at substantially right angles thereto and lying alongside said ears to provide a base the under surface of which presents a solder surface for attachment of the device, said flanges also protruding lengthwise of said fold to broaden the base longitudinally of the earsas well as laterally thereof.

3. The method of forming a finding for a pin stem joint or catch comprising forming a blank of uneven thickness with a hump at the central portion thereof, indenting the hump to provide a recess therein and divide the hump into spaced flanges and bending the blank at the location of the bottom of said recess to dispose said flanges in oppositely extending relation and the portions of the blank on either side of the bend in parallel relation.

4. A blank for a flnding for a pin stem joint or catch comprising a central hump, a pair of ears extending oppositely from said hump, said hump being of a height and a width at least that of one of the ears and having a central recess disposed transversely of the ears to divide the hump into spaced flanges.

EUGENE MOREHOUSE. 

